I doubt you will find anyone arguing that the Right of the People to not have to quarter troops in their homes is some natural right of humanity. However, it is still a 'Right' afforded to the citizens of this country. And when we are discussing rights as defined under the constitution, imo, it is from a legal definition. As laws are the basis of our society.
Remember, The Constitution is a legal contract between the people and the government the people were setting up. Therefore, those rights are the basis of our legal system. They are, for all intents and purposes...the law of this land. Nothing can supersede those. Nothing.
And thus, from a legal standpoint(lets leave the philosophy out of it), each and every right is equal to another right. While most of us can agree that the Right to not have to quarter troops in our homes seems kind of pointless today...it still holds as much weight legally as the right to free speech.
Bottom line, while you seem to want to discuss Rights from a philosophical standpoint, that debate has no place in this discussion. The discussion is one from a legal standpoint. That is not to say that your views are pointless or without merit. I am not weighing their merits at all. It is just that the discussion you want to have would be better served as its own topic, and probably framed as a philosophical discussion rather than a discussion of laws.